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238550394553 = 2232801381911
BaseRepresentation
bin1101111000101010110…
…1100010011010111001
3211210201222122122011021
43132022231202122321
512402022400111203
6301331042502441
723143333616602
oct3361255423271
9753658578137
10238550394553
119219452a209
123a296064a21
1319658c75323
14b78dd46da9
156312a685bd
hex378ab626b9

238550394553 has 8 divisors (see below), whose sum is σ = 239706302976. Its totient is φ = 237395256000.

The previous prime is 238550394529. The next prime is 238550394559. The reversal of 238550394553 is 355493055832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 238550394553 - 25 = 238550394521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 238550394553.

It is not an unprimeable number, because it can be changed into a prime (238550394559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433668 + ... + 815578.

It is an arithmetic number, because the mean of its divisors is an integer number (29963287872).

Almost surely, 2238550394553 is an apocalyptic number.

It is an amenable number.

238550394553 is a deficient number, since it is larger than the sum of its proper divisors (1155908423).

238550394553 is a wasteful number, since it uses less digits than its factorization.

238550394553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384935.

The product of its (nonzero) digits is 9720000, while the sum is 52.

The spelling of 238550394553 in words is "two hundred thirty-eight billion, five hundred fifty million, three hundred ninety-four thousand, five hundred fifty-three".

Divisors: 1 223 2801 381911 624623 85166153 1069732711 238550394553